Abstract: A tool for manually crimping a flanged vehicle door panel onto a door frame without the need to remove the door from the vehicle body. The tool includes a pair of levers having a slip joint pivot connection. The jaw of one lever carries a crimping head that can be slipped through the gap between the hinged edge of the vehicle door and the adjacent fender panel. The other jaw carries a backing head which opposes the crimping head when the levers are squeezed together to close the jaws in order to effect crimping of the door panel.